Discharge-pipe for pneumatic straw-elevators



(No ModeL) f P. F. LANDIS. l, DISCHARGE PIPE FOR PNEUMATIG S'IRAW'''LEVA'lORS.v 1\I0.512,556.-

WIT/VESSES:

UNITED STATE/S PATENT OEEICE.

FRANK F. LANDIS, OF WAYNESOROUGI-I, PENNSYLVANIA.

DISCHARGE-,PIPEFOR PNIEUNIATIC STRAW ELEVATORS.

SPECIFICATION forming part of Letters Patent o. 512,556, dated January9, 1894.

Application filed July 22, 1893. Serial No. 481,176. (No model.)

To a/ZZ whom t may con/cern:

Beit known that I, FRANK F. LANDIS, a citizen of the United States,residing at Waynesborough, in the county of Franklin and State ofPennsylvania, have invented certain new and usefulImprovements inDischarge-Pipes .for Pneumatic Straw-Elevators; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to the discharge pipes of pneumatic strawelevators and stackers used in connection with thrashing machines; andit consists in the novel'construc` tion and combination of the partshereinafter fully described and claimed whereby the direction of thestraw is controlled at the out? let of the discharge pipe.

In the drawings: Figure'l is a side view of the outlet pipe constructedaccording to this invention; and Fig. 2 is a plan view of the same. Fig.3 is a longitudinal section thro ugh the end of the discharge pipe,drawn to a larger scale.

A is the discharge pipe of a pneumatic straw elevator and stacker. This.pipe is preferably circular in cross-section and has a rectangular enda, which is open at the end and bottom. The side portions of the end ahave curved guide plates B secured to their ends.

C is a thin iiexible plate, preferably of sheet iron. One end of thisplate is secured to the top portion of the discharge pipe by the boltsor rivets c. A plate D is secured to the other end of the plate C and isprovided with pro; j ecting pins d at its ends, upon which groovedrollers D are journaled. The grooved rollers D engage with the edges ofthecurved guide plates B.

E are guide sheaves journaled in brackets e secured to the top of theend portion a, and

fand g are guide sheaves journaled on pins e projecting from the sidesof the end portion a.

F is a barrel mounted on a shaft f which is journaled in the bracket Gsecured to the pipe'A. The shaftf is provided with a handie g forrevolving the barrel.

I-I are cords, or their equivalents such as chains, wire ropes or bands.These cords are secured to the ends of the pins e and pass around theguide sheaves and barrel as shown in the drawings. The guide sheaves canbe variously located for convenience in operating the device.

J are guide sheaves carried by brackets secured to the under side of thepipe A. These guide sheaves J are used to deflect the cords when it isdesired to have the sides of the pipe clear for the attachment of thelifting rope I. The lifting rope I is attached to a collar I journaledon the pipe A when. the said pipe is revoluble, and i are rollers forpermitting the pipe to be turned in the "collar without friction. Whenthe barrel is turned to cause the cords to depress the outer end of theplate C, the plate is bent in the form of a curve, as shown in Fig. 3,being constrained by the form of the guide plate, and prevented frombending at its other end where it is secured to the discharge pipe. Whenthe discharge pipe is horizontal, the plate C may be raised as shownbythe dotted lines in Fig. 3, to discharge the straw horizontally out ofthe end of the pipe, or vthe plate C may be lowered to discharge thestraw vertically downward onto the stack. The plate C is not broken bybeing repeatedly bent back and forth as the bending is distributed overits entire length.

1. The combination, with the discharge pipehaving a rectangular end, ofthe curved guides on the sides of the said end, the flexible platesecured at one end to the top of the pipe and provided with rollers atits free end engaging the said guides, and means for moving the saidrollers along the guides, substantially as set forth. f

2. The combination, with the discharge pipe having a rectangular end, ofthe curved guides on the sides of the said end, the iiexible platesecured at one end to the top of the pipe, and provided with rollers atits free end engaging the said guides, a barrel journaled in a bracketsecured to the pipe and provided ing the said plate to bend in a gradualcurve, Io with means for revolving it, the cords conand means'forbending the plate, substannected to the said plat-e and passing aroundtially as set forth. the said barrel, and guide sheaves' for the Intestimony whereoflafx my signature in 5 said cords to pass over,substantially as set presence of two Witnesses.

forth. FRANK F. LANDIS.

3. The combination, with the end of a dis- Witnesses: charge pipe, of aflexible deflector plate se- HERBERT W. T. J ENNER,

cured at one end to the pipe, guides eonstrain- ALF. N. RUSSELL.

